To put something simple, I don't think a max effort Wedge (B1 or Predator heads) can out run a max effort Hemi (lets say with Millenium Heads). Most Hemi's I've seen, other than S/S Hemi's are not set on kill. Probably because the owner doesn't want to risk blowing the motor up. and they seem to run with the "set on Kill" mopar wedges. most people with Chevies, fords and mopar wedges don't seem to have the fear taking the risk of pushing their motors to their limits. Personally, I would have a fear of pushing my motor too far, despite having a bryant crank, oliver rods and a dual cross bolted block. I just can't afford to risk having to buy those parts all over again. if I had more cash I would go for it. Even Darren's motor is not at its full potential. SS Hemi's have larger cams than his. He designed his motor to fit a certain competition.

Just imagine what SS hemi's could make if they were allowed a lighter rotating assembly. or if they threw on a set of ported Millenium heads?